Cell pipette

Abstract

The utility model provides a cell pipette, which relates to the technical field of cell pipettes, and comprises a pipette body, a piston is arranged in the pipette body, a pipette head is arranged on the pipette body, a protective structure is arranged on the pipette body, the protective structure mainly comprises a protective ring, the protective ring is arranged on the pipette body, and the protective ring is arranged on the pipette body. Two fixing rods are fixedly connected to the protection ring, two sliding grooves are formed in the gun body, the fixing rods are in sliding connection with the sliding grooves, first springs are fixedly connected to the fixing rods, one ends of the first springs are fixedly connected to the inner walls of the sliding grooves, sliding grooves are formed in the gun body, and the first springs are fixedly connected to the inner walls of the sliding grooves. The fixing rod is fixedly connected with a rectangular block, a sliding rod is inserted into the rectangular block in a sliding mode, and the problem that in the operation process, the hand of a worker slightly shakes, a pipetting gun head is prone to touching the inner wall of a test tube, and cells adhere to the pipetting gun head, so that cell pollution is caused is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cell pipettes, in particular to a cell pipette. Background Art

[0002] A cell pipette, also known as a micropipette or pipette, is a commonly used tool in biological laboratories for accurately aspirating and transferring small amounts of liquid (such as cell culture medium, buffer solution, reagents, etc.). It has a wide range of applications in the fields of cell biology, molecular biology, biochemistry, and clinical laboratories.

[0003] During the use of the current cell pipette by staff, it is often found that: currently, the operator usually holds the cell pipette to perform the operation of dropping test solution or subculture. During the operation, the staff's hand will shake slightly, and the pipette tip is likely to touch the inner wall of the test tube and adhere to cells, resulting in cell contamination. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art, and a cell pipette is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a cell pipette, including a gun body, a piston is arranged in the gun body, a pipette tip is arranged on the gun body, a protection structure is arranged on the gun body, the protection structure is mainly composed of a protection ring, the protection ring is arranged on the gun body, two fixing rods are fixedly connected to the protection ring, two sliding grooves are opened on the gun body, and the fixing rods are slidably connected with the sliding grooves.

[0006] The effects achieved by the above components are as follows: The staff holds the gun body, installs the pipette tip on the gun body, clamps the protection ring on the port of the test tube, then slides the gun body downward so that the pipette tip inserts into the test tube, then slides the piston upward to aspirate cells. After the liquid is taken, slide the gun body upward so that the pipette tip leaves the test tube. The two fixing rods can limit the pipette tip to prevent the pipette tip from touching the inner wall of the test tube, thus avoiding the situation that due to the slight shaking of the staff's hand during the operation, the pipette tip is likely to touch the inner wall of the test tube and adhere to cells, resulting in cell contamination.

[0007] Preferably, a first spring is fixedly connected to the fixing rod, and one end of the first spring is fixedly connected to the inner wall of the sliding groove.

[0008] The effects achieved by the above components are as follows: When the gun body is slid upward, the first spring will be gradually stretched. Therefore, after the liquid is taken, the gun body will slide upward under the action of the elastic force of the first spring rebounding, making the operation more convenient.

[0009] Preferably, a sliding groove is formed in the gun body, a rectangular block is fixedly connected to the fixed rod, and a sliding rod is slidably inserted into the rectangular block.

[0010] The effect achieved by the above components is that the sliding of the sliding rod in the sliding groove can make the movement process of the gun body more stable.

[0011] Preferably, a ball is arranged at one end of the sliding rod, and a clamping groove is formed in the sliding groove.

[0012] The effect achieved by the above components is that the ball can make the sliding of the sliding rod in the sliding groove smoother, and when the sliding rod is clamped into the clamping groove during the liquid extraction process, the fixed rod can be limited.

[0013] Preferably, a second spring is sleeved on the sliding rod, one end of the second spring is fixedly connected to the sliding rod, and the other end of the second spring is fixedly connected to the rectangular block.

[0014] The effect achieved by the above components is that when the sliding rod slides in the sliding groove, the second spring is in a stretched state. Therefore, when the sliding rod slides to contact the clamping groove, it will be clamped into the clamping groove under the action of the elastic force of the second spring rebounding, further improving the convenience of operation.

[0015] Preferably, a liquid extraction structure is arranged on the gun body. The liquid extraction structure is mainly composed of a threaded rod, the threaded rod is fixedly connected to the piston, and a scale is arranged on the gun body.

[0016] The effect achieved by the above components is that the staff can drive the piston to move up and down by pushing and pulling the threaded rod up and down, and the liquid extraction can be more accurate by observing the scale.

[0017] Preferably, a knob is rotatably connected to the gun body, and the knob is threadedly connected to the threaded rod.

[0018] The effect achieved by the above components is that the staff can drive the threaded rod to move up and down by rotating the knob, making the operation more convenient.

[0019] Preferably, a connecting rod is fixedly connected to the threaded rod, two connecting rods are fixedly connected to the connecting rod, two sliding grooves are formed in the gun body, and the connecting rods are slidably connected to the sliding grooves.

[0020] The effect achieved by the above components is that the two connecting rods slide in the corresponding sliding grooves, which can prevent the piston from rotating in the gun body.

[0021] Compared with the prior art, the advantages and positive effects of the present utility model are as follows. In the present utility model, by providing a protective structure, the protective ring is clamped at the port of the test tube, and then the gun body is slid downward so that the gun head is inserted into the test tube. Then the piston is slid upward to aspirate cells. After the liquid aspiration is completed, the gun body is slid upward so that the gun head leaves the test tube. The two fixing rods can limit the position of the gun head to prevent the gun head from touching the inner wall of the test tube. When the gun body is slid upward, the first spring will be gradually stretched. Therefore, after the liquid aspiration is completed, the gun body will slide upward under the action of the resilient force of the first spring, making the operation more convenient. The sliding rod slides in the sliding groove, which can make the movement process of the gun body more stable. The ball can make the sliding of the sliding rod in the sliding groove smoother. During the liquid aspiration process, the sliding rod is clamped into the card slot, which can limit the position of the fixing rod. When the sliding rod slides in the sliding groove, the second spring is in a stretched state. Therefore, when the sliding rod slides to contact the card slot, it will be clamped into the card slot under the action of the resilient force of the second spring, further improving the convenience of the operation, thereby avoiding the situation that during the operation process, the hands of the staff will have slight tremors, the pipette tip is likely to touch the inner wall of the test tube and adhere to cells, resulting in cell contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is a three-dimensional structural schematic diagram of a cell pipette gun proposed by the present utility model;

[0023] Figure 2 FIG. is a three-dimensional structural schematic diagram of another perspective of a cell pipette gun proposed by the present utility model;

[0024] Figure 3 FIG. is a sectional view of a cell pipette gun proposed by the present utility model;

[0025] Figure 4 FIG. is a cell pipette gun proposed by the present utility model Figure 1 The enlarged view of part A in.

[0026] Legend: 1. Gun body; 2. Piston; 3. Gun head; 4. Protective structure; 41. Protective ring; 42. Fixing rod; 43. Slide groove; 44. First spring; 45. Sliding groove; 46. Rectangular block; 47. Sliding rod; 48. Second spring; 49. Ball; 410. Card slot; 5. Liquid aspiration structure; 51. Threaded rod; 52. Knob; 53. Connecting rod; 54. Sliding groove; 55. Link; 56. Scale. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Example 1, as Figure 1 shown, a cell pipette gun includes a gun body 1, a piston 2 is arranged in the gun body 1, and a gun head 3 is arranged on the gun body 1.

[0028] Refer to Figure 1 and Figure 3, a protective structure 4 is provided on the gun body 1. The protective structure 4 is mainly composed of a protective ring 41. The protective ring 41 is provided on the gun body 1. Two fixing rods 42 are fixedly connected to the protective ring 41. Two sliding grooves 43 are formed on the gun body 1. The fixing rods 42 are slidably connected to the sliding grooves 43. The staff holds the gun body 1, installs the gun head 3 on the gun body 1, clamps the protective ring 41 on the port of the test tube, and then slides the gun body 1 downward so that the gun head 3 is inserted into the test tube. Then, the piston 2 is slid upward to aspirate cells. After the liquid is taken, the gun body 1 is slid upward so that the gun head 3 leaves the test tube. The two fixing rods 42 can limit the position of the gun head 3 to prevent the gun head 3 from touching the inner wall of the test tube, thereby avoiding the situation that during the operation process, the staff's hand will shake slightly, and the pipette tip 3 is likely to touch the inner wall of the test tube and adhere to cells, resulting in cell contamination. A first spring 44 is fixedly connected to the fixing rod 42. One end of the first spring 44 is fixedly connected to the inner wall of the sliding groove 43. When the gun body 1 is slid upward, the first spring 44 will be gradually stretched. Therefore, after the liquid is taken, the gun body 1 will slide upward under the action of the elastic force of the first spring 44 rebounding, making the operation more convenient. A sliding groove 45 is formed on the gun body 1. A rectangular block 46 is fixedly connected to the fixing rod 42. A sliding rod 47 is slidably inserted into the rectangular block 46. The sliding rod 47 slides in the sliding groove 45, which can make the moving process of the gun body 1 more stable. One end of the sliding rod 47 is provided with a ball 49. A clamping groove 410 is formed in the sliding groove 45. The ball 49 can make the sliding of the sliding rod 47 in the sliding groove 45 more smooth. During the liquid-taking process, the sliding rod 47 is clamped into the clamping groove 410, which can limit the position of the fixing rod 42. A second spring 48 is sleeved on the sliding rod 47. One end of the second spring 48 is fixedly connected to the sliding rod 47, and the other end of the second spring 48 is fixedly connected to the rectangular block 46. When the sliding rod 47 slides in the sliding groove 45, the second spring 48 is in a stretched state. Therefore, when the sliding rod 47 slides to contact the clamping groove 410, it will be clamped into the clamping groove 410 under the action of the elastic force of the second spring 48 rebounding, further improving the convenience of the operation.

[0029] Refer to Figure 2 and Figure 4 , a liquid-taking structure 5 is provided on the gun body 1. The liquid-taking structure 5 is mainly composed of a threaded rod 51. The threaded rod 51 is fixedly connected to the piston 2. A scale 56 is provided on the gun body 1. The staff can drive the piston 2 to move up and down by pushing and pulling the threaded rod 51 up and down, and can make the liquid-taking more accurate by observing the scale 56. A knob 52 is rotatably connected to the gun body 1. The knob 52 is threadedly connected to the threaded rod 51. The staff rotates the knob 52 to drive the threaded rod 51 to move up and down, making the operation more convenient. A connecting rod 55 is fixedly connected to the threaded rod 51. Two connecting rods 53 are fixedly connected to the connecting rod 55. Two sliding grooves 54 are formed on the gun body 1. The connecting rods 53 are slidably connected to the sliding grooves 54. The two connecting rods 53 slide in the corresponding sliding grooves 54, which can prevent the piston 2 from rotating in the gun body 1.

[0030] Working principle: The operator holds the gun body 1, installs the gun head 3 on the gun body 1, clamps the protective ring 41 on the port of the test tube, then slides the gun body 1 downward so that the gun head 3 is inserted into the test tube, and then slides the piston 2 upward to aspirate cells. After the liquid extraction is completed, slide the gun body 1 upward so that the gun head 3 leaves the test tube. The two fixing rods 42 can limit the position of the gun head 3 to prevent the gun head 3 from touching the inner wall of the test tube, thus avoiding the situation that during the operation process, the operator's hand will shake slightly, and the pipette tip 3 is likely to touch the inner wall of the test tube and adhere to cells, resulting in cell contamination. When the gun body 1 is slid upward, the first spring 44 will be gradually stretched. Therefore, after the liquid extraction is completed, the gun body 1 will slide upward under the action of the elastic force of the first spring 44 rebounding, making the operation more convenient. The slide rod 47 slides in the sliding groove 45, which can make the movement process of the gun body 1 more stable. The ball 49 can make the sliding of the slide rod 47 in the sliding groove 45 more smooth. During the liquid extraction process, the slide rod 47 is clamped into the card slot 410 to limit the position of the fixing rod 42. When the slide rod 47 slides in the sliding groove 45, the second spring 48 is in a stretched state. Therefore, when the slide rod 47 slides to contact the card slot 410, it will be clamped into the card slot 410 under the action of the elastic force of the second spring 48 rebounding, further improving the convenience of the operation. The operator can drive the piston 2 to move up and down by pushing and pulling the threaded rod 51 up and down, and can make the liquid extraction more accurate by observing the scale 56. The operator rotates the knob 52 to drive the threaded rod 51 to move up and down, making the operation more convenient. The two connecting rods 53 slide in the corresponding sliding grooves 54 to prevent the piston 2 from rotating in the gun body 1.

[0031] The above is only the preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

Claims

1. A cell pipette gun, comprising a gun body (1), characterized in that: A piston (2) is arranged in the gun body (1), a gun head (3) is arranged on the gun body (1), a protection structure (4) is arranged on the gun body (1), the protection structure (4) is mainly composed of a protection ring (41), the protection ring (41) is arranged on the gun body (1), two fixing rods (42) are fixedly connected to the protection ring (41), two sliding grooves (43) are formed in the gun body (1), and the fixing rods (42) are slidably connected to the sliding grooves (43).

2. The cell pipette according to claim 1, wherein: A first spring (44) is fixedly connected to the fixing rod (42), and one end of the first spring (44) is fixedly connected to the inner wall of the sliding groove (43).

3. The cell pipette gun according to claim 2, wherein: A sliding groove (45) is formed in the gun body (1), a rectangular block (46) is fixedly connected to the fixing rod (42), and a sliding rod (47) is slidably inserted into the rectangular block (46).

4. The cell pipette gun according to claim 3, characterized in that: A ball (49) is arranged at one end of the sliding rod (47), and a clamping groove (410) is formed in the sliding groove (45).

5. The cell pipette gun according to claim 4, characterized in that: A second spring (48) is sleeved on the sliding rod (47), one end of the second spring (48) is fixedly connected to the sliding rod (47), and the other end of the second spring (48) is fixedly connected to the rectangular block (46).

6. The cell pipette gun according to claim 5, wherein: A liquid taking structure (5) is arranged on the gun body (1), the liquid taking structure (5) is mainly composed of a threaded rod (51), the threaded rod (51) is fixedly connected to the piston (2), and a scale (56) is arranged on the gun body (1).

7. The cell pipette gun according to claim 6, characterized in that: A knob (52) is rotatably connected to the gun body (1), and the knob (52) is threadedly connected to the threaded rod (51).

8. The cell pipette gun according to claim 7, characterized in that: A connecting rod (55) is fixedly connected to the threaded rod (51), two connecting rods (53) are fixedly connected to the connecting rod (55), two sliding grooves (54) are formed in the gun body (1), and the connecting rods (53) are slidably connected to the sliding grooves (54).

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